A simple VIN check can also prevent insurance fraud because it lists thefts. It is not a substitute for a complete car history report free online That includes everything from oil changes to major engine overhauls, accidents and more in depth information. It is useful however if you are skeptical about a car’s origins or think it could have been a stolen vehicle. One of the most important things you want to do before you ever buy a used car, is at least get a free AutoCheck car history report free online. After all, you are putting your hard earned money on the line, and you don’t want to end up with a lemon. The problem with the free report is it doesn’t tell you the whole story.